US2444501A - Closure fastener - Google Patents

Description

July 6, 1948. A. T. FISHER CLOSURE FASITENER Filed Oct. 2, 1944 Patented July 6, i943 CLOSURE FASTENER Albert T. Fisher, Hartford, Conn. Application October 2, 1944, Serial No. 556,823

3 Claims.

This invention relates to new and useful improvements in fasteners and more particularly to a fastener which is not restricted only to use on slide sashes but is also usable on double windows, side hinged windows and various other type windows and other closures.

An important object of the invention is to provide a fastener which while being easy to operate from the inside of the building is very difficult to reach and operate from the outside without first breaking the closure.

Another important object of the invention is to provide a fastener which cannot become unfastened due to vibration over a period of time such as will frequently occur with the common cam type fasteners now in general use.

Still another important object of the invention is to provide a fastener which is constructed with utmost strength and durability.

Other objects and advantages of the invention shall loecome apparent to the reader of the following description.

In the drawings:

Figure 1 is a fragmentary top plan view showing the fastener with a portion broken away and installed on a pair of window sashes.

Figure 2 is a side elevational view of the fastener installed. on a pair of window sashes.

Figure 3 is a fragmentary vertical sectional view taken on line 33 of Figure 1.

Figure 4 is a bottom plan view iOf one of the sections of the fastener with a portion in section.

Figure 5 is an enlarged fragmentary detailed sectional view taken on line 55 of Figure 1.

Referring to the drawings wherein like runner als designate like parts, it can be seen that reference character A denotes the lower portion of an upper slidable window sash, while reference character B denotes the upper portion of a lower slidable window sash. The improved fastener is generally referred to by the numeral 5 and is made up of two sections, one being the fastener element section and the other the keeper section. The fastener element section of the fastener which is shown inverted in Figure 4 consists of a shallow shell having an areuate side wall 6 and a top I, the straight side of which opposes one side of an elongated shell 8 of about the same height as the shell shown in Figure 4, but formed with transversely opposed central openings for receiving the depending tail portions 9 of a keeper loop ill, rising above the shell 8. The shell 8 has a top wall formed with openings through which screws H are disposed and driven downwardly into the sash A.

As shown more clearly in Figures 2 and 3, the tailor leg portions 9 of the upright holding unember ill of the keeper section are offset inwardly toward each other and then extend downwardly in parallel relation, thus producing shoulders 9' to seat firmly on the edge portions of said central openings in the shell 8 when said tail or leg portions Q are inserted and riveted in place.

Reverting again to the section of the fastener shown in Figure 4, it can be seen that a pair of studs 82;, i2 depend from the bottom side of the top wall I and are lo-ifurcated, as at it, to receive intermediate portions of an elongated and looped split spring M which is disposed in the ovate form shown in Figure 4 with its meeting end portions overlapping, as at It, and secured betwee a fixed stud 1 on the top wall 1 and an opposed side wall portion of the latch element 5 (see Figure a).

A square member i5 is carried by and fixedly on the lower end of a vertical shaft it which rises through a bearing aperture in the top 7, this shaft extending upwardly through and secured fixedly to the inner end of an arm ll, the arm ll having a semi-circular shaped latch member l8 projecting from the intermediate portion thereof and extending to a point beyond the inner end *of the arm it. A transverse pin. it is disposed through the inner end of the arm El and shaft in so that these parts turn together.

An arcuate faced bearing plate 2t is provided on the inner side of the keeper loop iii and against this rides the arcuate inner side of the latch mernher it.

As can be seen in Figure 3, the latch element section of the fastener has a bottom plate 2! secured to the top '5 by screws 22. This bottom plate 2| serves to hold the spring Hi intact. Screws 23 are disposed downwardly through the top '3 and plate 25 and are driven into the sash B.

It can now be seen, that when the arm ii is moved to the position shown in Figure 1, the latch member it will be disposed through the keeper loop is and snugly against the bearing plate 2%, as one flat side of the square member i5 hears against the intermediate portion of the spring Hi, thus preventing return of the arm it and its latch member it.

By exerting force On the arm ii, the arm it can be rotated against the compression of the spring it to withdraw the latch member it from the keeper it} and when moved to the dotted line position shown in Figure 1 will remain in that :position due to the engagement of the opposite side of the square element It against the spring it.

It is preferable that the top 7 have a pair of upstanding stop lugs 25, 25 against which the arm I! can abut when in latched or unlatched position.

While the foregoing description sets forth the 6 invention in specific terms, it is to be understood that numerous changes in the shape, size and materials may be resorted to without departing from the spirit and. scopeof the invention as claimed.

hereinafter. 0

Having described the claimed as new is:

invention, what is 1. A closure fastener oi the class described, comprising a keeper element section including adj. base plate portion, an upstanding holding mem- 15 her having opposite leg portions arranged on said keeper section and adapted for engagement bytvay substantially arcuate swingable catch member on. a separate but cooperative latch section, said 1113 standing holding member of the keeper section 20 being-formed with a substantally rectangular looped catch-receiving portion, the opposite legportions of said holding member being seatingly inserted-through slots provided therefor in their base plate portion of said keeper section and se- :25"

cured to the inner faces of the adjacent opposed-. side-wall portions of the section.

2. A closure fastener of the. class described and: as-set forth in claim 1,-wherein the side wall portion of the looped part'of the holding memberxof 3i) the=keeper section adjacent the; companion latch ii elementis provided on its inner face with an ar cuate-faced bearing plate to receive the catch member of the latch section in slidable engagewith each other from ment therewith.

3. A closur as set forth [of the upst e fastener of the class described and in claim 1, wherein the leg portions ending holding member are parallel her and offset inwardly toward each the operative looped portion of the membele which is adjacent 1e companion latch sectionso "as to receive in slidable holding engagement; therewith: the substantially arcuate catch member of the latch section.

ALBERT T. FISHER.

REFERENCES CITED The-iollowing references are of record inv the file-hon this ;patent".

UNITED STATES PATENTS Name Date ORourke 1390.22, 1914 Thomas-let al. Feb. 19, 1918 Parkes'. Apn z'l, 1920 Jackson .Apr. 28, 1925 Polish; Dec. 24, 1940

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